CN110373689A - A kind of electrochemical process preparation Ni-Fe-P-MnFeO3The method of elctro-catalyst - Google Patents
A kind of electrochemical process preparation Ni-Fe-P-MnFeO3The method of elctro-catalyst Download PDFInfo
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- CN110373689A CN110373689A CN201910679417.8A CN201910679417A CN110373689A CN 110373689 A CN110373689 A CN 110373689A CN 201910679417 A CN201910679417 A CN 201910679417A CN 110373689 A CN110373689 A CN 110373689A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000003054 catalyst Substances 0.000 title claims abstract description 24
- 230000008569 process Effects 0.000 title claims abstract description 9
- 238000002360 preparation method Methods 0.000 title abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 84
- 229910052742 iron Inorganic materials 0.000 claims abstract description 42
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 41
- 239000010439 graphite Substances 0.000 claims abstract description 41
- 239000010935 stainless steel Substances 0.000 claims abstract description 41
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 41
- 238000004070 electrodeposition Methods 0.000 claims abstract description 26
- 238000007747 plating Methods 0.000 claims abstract description 21
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims abstract description 11
- 229910000406 trisodium phosphate Inorganic materials 0.000 claims abstract description 11
- 229910052603 melanterite Inorganic materials 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 239000008367 deionised water Substances 0.000 claims description 29
- 229910021641 deionized water Inorganic materials 0.000 claims description 29
- 239000007788 liquid Substances 0.000 claims description 28
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 24
- 229910052697 platinum Inorganic materials 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 10
- 230000004913 activation Effects 0.000 claims description 9
- 230000005518 electrochemistry Effects 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims 2
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims 2
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 claims 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims 2
- 239000012190 activator Substances 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims 1
- 238000004506 ultrasonic cleaning Methods 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 12
- 239000001257 hydrogen Substances 0.000 abstract description 12
- 230000003197 catalytic effect Effects 0.000 abstract description 8
- 239000011159 matrix material Substances 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000003213 activating effect Effects 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 229910000510 noble metal Inorganic materials 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 239000000956 alloy Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910017709 Ni Co Inorganic materials 0.000 description 1
- 229910003267 Ni-Co Inorganic materials 0.000 description 1
- 229910003271 Ni-Fe Inorganic materials 0.000 description 1
- 229910003296 Ni-Mo Inorganic materials 0.000 description 1
- 229910018104 Ni-P Inorganic materials 0.000 description 1
- 229910003262 Ni‐Co Inorganic materials 0.000 description 1
- 229910018536 Ni—P Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052728 basic metal Inorganic materials 0.000 description 1
- 150000003818 basic metals Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002659 electrodeposit Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000002385 metal-ion deposition Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
Abstract
The present invention provides a kind of electrochemical processes to prepare Ni-Fe-P-MnFeO3The method of elctro-catalyst, it is characterised in that: matrix is the metal iron plate or stainless steel or graphite by activating pretreatment, and plating solution group becomes 100~300gL‑1NiSO4·6H2O, 5~80gL‑ 1NiCl2·6H2O, 5~80gL‑1FeSO4·7H2O, 5~70gL‑1H3BO3, 2~50gL‑1Na3PO4·12H2O adds 10~100gL in electroplate liquid‑1MnFeO3, electro-deposition current density is 10~300mA/cm2, bath temperature is 0~20 DEG C, and electrodeposition time is 0.1~5h, Ni-Fe-P-MnFeO obtained3Coating is amorphous deposit.The catalyzing manufacturing of hydrogen electrode has preparation process simplicity, stability height, can be effectively reduced overpotential of hydrogen evolution, the good feature of electro catalytic activity, and is not related to the use of noble metal salt and strong reductant in production process, and environmental hazard is small.
Description
Technical field
The present invention relates to a kind of electrochemical processes to prepare Ni-Fe-P-MnFeO3The method of elctro-catalyst, belongs to new energy materials
And electro-catalysis technical field.
Background technique
The problems such as environmental pollution caused by chemical energy source and temperature change, has become people's urgent problem to be solved, clean,
Pollution-free, the sustainable energy comes into being.Hydrogen Energy has the advantages that combustion heat value is high, Ke Xunhuanliyong, is present cleaning energy
Fall over each other the hot spot of research in source.It is well known that efficiently, at low cost, hydrogen making is the key that deep exploitation hydrogen.With it
He compares method, and the environmental protection of water electrolysis hydrogen production method and sustainable feature more meet the theory of modern " green ".
Transition metal alloy has certain catalytic action to cathode hydrogen evolution reaction, it could even be possible to being more than your single gold
Belong to the catalytic activity of electrode.For the research huge number of transition group cathode hydrogen evolution alloy material, most of alloy is all
Using Ni as basic metal, tracing it to its cause is primarily due to the excellent catalytic property of Ni itself and it is heavy in alloy electrochemistry
The special nature of long-pending and metallurgy etc..Current research mainly includes Ni-S, Ni-Mo, Ni-Co, Ni-P, Ni-Fe and its phase
The amorphous coating of the ternary and multicomponent alloy of pass, formation can greatly reduce overpotential of hydrogen evolution, have preferable electro-catalysis
Hydrogen Evolution Performance.Perovskite oxide material is due to its structure-controllable, thermal stability is good, high catalytic efficiency, it is cheap the advantages that,
It is increasingly becoming the hot spot of modern industry catalytic field research.Wherein perovskite composite oxide ABO3Initial activity is excellent with the service life
In platinum catalyst, it is expected to the substitute as platinum.
The Ni-Fe-P system amorphous deposit of electrodeposition process preparation at present is mostly realized at high temperature, and matrix is generally nickel foam
And Copper substrate, there are electrodeposit reaction temperature it is high, relatively expensive the disadvantages of.The present invention uses Low-temperature electro-deposition method, passes through
Regulate and control electrode current density for the metal ion deposition in solution in iron matrix electrode surface, while introducing perovskite oxide,
Obtain the uniform amorphous composite deposite Ni-Fe-P-MnFeO of ingredient3, catalytic hydrogen evolution has excellent performance.This method is easy to operate, easily
It is a kind of very promising method for preparing catalyst in prepare with scale.
Summary of the invention
The object of the present invention is to provide a kind of electrochemical processes to prepare Ni-Fe-P-MnFeO3The method of elctro-catalyst, to solve
The above-mentioned problems of the prior art makes Ni-Fe-P-MnFeO3Amorphous deposit ingredient is uniform, is tightly combined with matrix, catalysis analysis
Hydrogen is had excellent performance, and simple process, is easy to produce in batches, has important scientific meaning and application background.
The object of the invention is achieved through the following technical solutions:
A kind of electrochemical process preparation Ni-Fe-P-MnFeO3The method of elctro-catalyst, includes the following steps:
(1) it by with a thickness of the metal iron plate or stainless steel or graphite of 0.05~20mm, is activated, is activated at room temperature
Agent is 5~50Vol%HCl, and activation time is 5~100s；
(2) pretreated iron plate or stainless steel or graphite are cleaned up with deionized water, is removed with dehydrated alcohol
Oil processing, it is dry after deionized water is cleaned；
(3) electroplate liquid group becomes 100~300gL-1NiSO4·6H2O, 5~80gL-1NiCl2·6H2O, 5~80g
L-1FeSO4·7H2O, 5~70gL-1H3BO3, 2~50gL-1Na3PO4·12H2O utilizes 2~40Vol%H2SO4Adjustment plating
Liquid pH value is to 1~4；
(4) by 10~100gL-1Granularity is the MnFeO of 5~500nm3It is added in electroplate liquid, ultrasonic disperse 5~
30min；
(5) pretreated iron plate or stainless steel or graphite are immersed in plating solution, iron plate or stainless steel or graphite conduct
Cathode, platinum plate electrode is as anode, and at 0~20 DEG C, current density is 10~300mAcm-2Under the conditions of, 0.1~5h of electro-deposition；
(6) after the completion of electro-deposition, sample is taken out, is cleaned with deionized water, is ultrasonic clean, it is dry, Ni-Fe-P- is made
MnFeO3Elctro-catalyst.
The present invention has prepared Ni-Fe-P-MnFeO using electrodeposition process3Catalyst coating, compared with prior art, this
Invention has many advantages, such as that catalytic performance is excellent, electrodeposition temperature is low, basis material is cheap, method is simple and easy.
Specific embodiment
The present invention, but following implementations can further be expressly understood by the specific embodiment of invention now given below
Example is not limitation of the invention.
Embodiment 1:
(1) it by with a thickness of the metal iron plate or stainless steel or graphite of 0.05~20mm, is activated, is activated at room temperature
Agent is 5~50Vol%HCl, and activation time is 5~100s；
(2) pretreated iron plate or stainless steel or graphite are cleaned up with deionized water, is removed with dehydrated alcohol
Oil processing, it is dry after deionized water is cleaned；
(3) electroplate liquid group becomes 100~300gL-1NiSO4·6H2O, 5~80gL-1NiCl2·6H2O, 5~80g
L-1FeSO4·7H2O, 5~70gL-1H3BO3, 2~50gL-1Na3PO4·12H2O utilizes 2~40Vol%H2SO4Adjustment plating
Liquid pH value is to 1~4；
(4) by 10gL-1Granularity is the MnFeO of 5~500nm3It is added in electroplate liquid, 5~30min of ultrasonic disperse；
(5) pretreated iron plate or stainless steel or graphite are immersed in plating solution, iron plate or stainless steel or graphite conduct
Cathode, platinum plate electrode is as anode, at 0~20 DEG C, current density 30mAcm-2Under the conditions of, 0.1~5h of electro-deposition；
(6) after the completion of electro-deposition, sample is taken out, is cleaned with deionized water, is ultrasonic clean, it is dry, Ni-Fe-P- is made
MnFeO3Elctro-catalyst.
Embodiment 2:
(1) it by with a thickness of the metal iron plate or stainless steel or graphite of 0.05~20mm, is activated, is activated at room temperature
Agent is 5~50Vol%HCl, and activation time is 5~100s；
(2) pretreated iron plate or stainless steel or graphite are cleaned up with deionized water, is removed with dehydrated alcohol
Oil processing, it is dry after deionized water is cleaned；
(3) electroplate liquid group becomes 100~300gL-1NiSO4·6H2O, 5~80gL-1NiCl2·6H2O, 5~80g
L-1FeSO4·7H2O, 5~70gL-1H3BO3, 2~50gL-1Na3PO4·12H2O utilizes 2~40Vol%H2SO4Adjustment plating
Liquid pH value is to 1~4；
(4) by 20gL-1Granularity is the MnFeO of 5~500nm3It is added in electroplate liquid, 5~30min of ultrasonic disperse；
(5) pretreated iron plate or stainless steel or graphite are immersed in plating solution, iron plate or stainless steel or graphite conduct
Cathode, platinum plate electrode is as anode, at 0~20 DEG C, current density 30mAcm-2Under the conditions of, 0.1~5h of electro-deposition；
(6) after the completion of electro-deposition, sample is taken out, is cleaned with deionized water, is ultrasonic clean, it is dry, Ni-Fe-P- is made
MnFeO3Elctro-catalyst.
Embodiment 3:
(1) it by with a thickness of the metal iron plate or stainless steel or graphite of 0.05~20mm, is activated, is activated at room temperature
Agent is 5~50Vol%HCl, and activation time is 5~100s；
(2) pretreated iron plate or stainless steel or graphite are cleaned up with deionized water, is removed with dehydrated alcohol
Oil processing, it is dry after deionized water is cleaned；
(3) electroplate liquid group becomes 100~300gL-1NiSO4·6H2O, 5~80gL-1NiCl2·6H2O, 5~80g
L-1FeSO4·7H2O, 5~70gL-1H3BO3, 2~50gL-1Na3PO4·12H2O utilizes 2~40Vol%H2SO4Adjustment plating
Liquid pH value is to 1~4；
(4) by 30gL-1Granularity is the MnFeO of 5~500nm3It is added in electroplate liquid, 5~30min of ultrasonic disperse；
(5) pretreated iron plate or stainless steel or graphite are immersed in plating solution, iron plate or stainless steel or graphite conduct
Cathode, platinum plate electrode is as anode, at 0~20 DEG C, current density 30mAcm-2Under the conditions of, 0.1~5h of electro-deposition；
(6) after the completion of electro-deposition, sample is taken out, is cleaned with deionized water, is ultrasonic clean, it is dry, Ni-Fe-P- is made
MnFeO3Elctro-catalyst.
Embodiment 4:
(1) it by with a thickness of the metal iron plate or stainless steel or graphite of 0.05~20mm, is activated, is activated at room temperature
Agent is 5~50Vol%HCl, and activation time is 5~100s；
(2) pretreated iron plate or stainless steel or graphite are cleaned up with deionized water, is removed with dehydrated alcohol
Oil processing, it is dry after deionized water is cleaned；
(3) electroplate liquid group becomes 100~300gL-1NiSO4·6H2O, 5~80gL-1NiCl2·6H2O, 5~80g
L-1FeSO4·7H2O, 5~70gL-1H3BO3, 2~50gL-1Na3PO4·12H2O utilizes 2~40Vol%H2SO4Adjustment plating
Liquid pH value is to 1~4；
(4) by 40gL-1Granularity is the MnFeO of 5~500nm3It is added in electroplate liquid, 5~30min of ultrasonic disperse；
(5) pretreated iron plate or stainless steel or graphite are immersed in plating solution, iron plate or stainless steel or graphite conduct
Cathode, platinum plate electrode is as anode, at 0~20 DEG C, current density 30mAcm-2Under the conditions of, 0.1~5h of electro-deposition；
(6) after the completion of electro-deposition, sample is taken out, is cleaned with deionized water, is ultrasonic clean, it is dry, Ni-Fe-P- is made
MnFeO3Elctro-catalyst.
Embodiment 5
(1) it by with a thickness of the metal iron plate or stainless steel or graphite of 0.05~20mm, is activated, is activated at room temperature
Agent is 5~50Vol%HCl, and activation time is 5~100s；
(2) pretreated iron plate or stainless steel or graphite are cleaned up with deionized water, is removed with dehydrated alcohol
Oil processing, it is dry after deionized water is cleaned；
(3) electroplate liquid group becomes 100~300gL-1NiSO4·6H2O, 5~80gL-1NiCl2·6H2O, 5~80g
L-1FeSO4·7H2O, 5~70gL-1H3BO3, 2~50gL-1Na3PO4·12H2O utilizes 2~40Vol%H2SO4Adjustment plating
Liquid pH value is to 1~4；
(4) by 40gL-1Granularity is the MnFeO of 5~500nm3It is added in electroplate liquid, 5~30min of ultrasonic disperse；
(5) pretreated iron plate or stainless steel or graphite are immersed in plating solution, iron plate or stainless steel or graphite conduct
Cathode, platinum plate electrode is as anode, at 0~20 DEG C, current density 100mAcm-2Under the conditions of, 0.1~5h of electro-deposition；
(6) after the completion of electro-deposition, sample is taken out, is cleaned with deionized water, is ultrasonic clean, it is dry, Ni-Fe-P- is made
MnFeO3Elctro-catalyst.
Embodiment 6
(1) it by with a thickness of the metal iron plate or stainless steel or graphite of 0.05~20mm, is activated, is activated at room temperature
Agent is 5~50Vol%HCl, and activation time is 5~100s；
(2) pretreated iron plate or stainless steel or graphite are cleaned up with deionized water, is removed with dehydrated alcohol
Oil processing, it is dry after deionized water is cleaned；
(3) electroplate liquid group becomes 100~300gL-1NiSO4·6H2O, 5~80gL-1NiCl2·6H2O, 5~80g
L-1FeSO4·7H2O, 5~70gL-1H3BO3, 2~50gL-1Na3PO4·12H2O utilizes 2~40Vol%H2SO4Adjustment plating
Liquid pH value is to 1~4；
(4) by 40gL-1Granularity is the MnFeO of 5~500nm3It is added in electroplate liquid, 5~30min of ultrasonic disperse；
(5) pretreated iron plate or stainless steel or graphite are immersed in plating solution, iron plate or stainless steel or graphite conduct
Cathode, platinum plate electrode is as anode, at 0~20 DEG C, current density 150mAcm-2Under the conditions of, 0.1~5h of electro-deposition；
(6) after the completion of electro-deposition, sample is taken out, is cleaned with deionized water, is ultrasonic clean, it is dry, Ni-Fe-P- is made
MnFeO3Elctro-catalyst.
Embodiment 7
(1) it by with a thickness of the metal iron plate or stainless steel or graphite of 0.05~20mm, is activated, is activated at room temperature
Agent is 5~50Vol%HCl, and activation time is 5~100s；
(2) pretreated iron plate or stainless steel or graphite are cleaned up with deionized water, is removed with dehydrated alcohol
Oil processing, it is dry after deionized water is cleaned；
(3) electroplate liquid group becomes 100~300gL-1NiSO4·6H2O, 5~80gL-1NiCl2·6H2O, 5~80g
L-1FeSO4·7H2O, 5~70gL-1H3BO3, 2~50gL-1Na3PO4·12H2O utilizes 2~40Vol%H2SO4Adjustment plating
Liquid pH value is to 1~4；
(4) by 40gL-1Granularity is the MnFeO of 5~500nm3It is added in electroplate liquid, 5~30min of ultrasonic disperse；
(5) pretreated iron plate or stainless steel or graphite are immersed in plating solution, iron plate or stainless steel or graphite conduct
Cathode, platinum plate electrode is as anode, at 0~20 DEG C, current density 250mAcm-2Under the conditions of, 0.1~5h of electro-deposition；
(6) after the completion of electro-deposition, sample is taken out, is cleaned with deionized water, is ultrasonic clean, it is dry, Ni-Fe-P- is made
MnFeO3Elctro-catalyst.
Obviously, the above embodiment of the present invention is not to this just for the sake of clearly demonstrating examples of the invention
The limitation of other forms is made in invention, and any person skilled in the art is become possibly also with the technology contents of the disclosure above
More or it is modified as equivalent variations of equivalent embodiments.But without departing from the technical solutions of the present invention, according to the present invention
Technical spirit any simple modification, equivalent variations and remodeling to the above embodiments, still fall within technical solution of the present invention
Protection scope.
Claims (5)
1. a kind of electrochemical process prepares Ni-Fe-P-MnFeO3The method of elctro-catalyst, including following order step:
(1) it by with a thickness of the metal iron plate or stainless steel or graphite of 0.05~20mm, is activated at room temperature, activator is
5~50Vol%HCl, activation time are 5~100s；
(2) pretreated iron plate or stainless steel or graphite are cleaned up with deionized water, is carried out at oil removing with dehydrated alcohol
Reason, it is dry after deionized water is cleaned；
(3) electroplate liquid group becomes 100~300gL-1 NiSO4·6H2O, 5~80gL-1 NiCl2·6H2O, 5~80gL-1
FeSO4·7H2O, 5~70gL-1 H3BO3, 2~50gL-1 Na3PO4·12H2O utilizes 2~40Vol%H2SO4Adjustment plating
Liquid pH value is to 1~4；
(4) by 10~100gL-1Granularity is the MnFeO of 5~500nm3It is added in electroplate liquid, 5~30min of ultrasonic disperse；
(5) pretreated iron plate or stainless steel or graphite are immersed in plating solution, iron plate or stainless steel or graphite as cathode,
Platinum plate electrode is as anode, and at 0~20 DEG C, current density is 10~300mAcm-2Under the conditions of, 0.1~5h of electro-deposition；
(6) after the completion of electro-deposition, sample is taken out, is cleaned with deionized water, is ultrasonic clean, it is dry, Ni-Fe-P-MnFeO is made3
Elctro-catalyst.
2. preparing Ni-Fe-P-MnFeO according to a kind of electrochemistry described in claim 13The method of catalyst, it is characterised in that: will
With a thickness of the metal iron plate or stainless steel or graphite of 0.05~20mm, be activated at room temperature, pretreated iron plate or
Stainless steel or graphite are cleaned up with deionized water, then carry out oil removal treatment with dehydrated alcohol, dry after deionized water is cleaned.
3. preparing Ni-Fe-P-MnFeO according to a kind of electrochemistry described in claim 13The method of catalyst, it is characterised in that: electricity
Plating solution group becomes 100~300gL-1 NiSO4·6H2O, 5~80gL-1 NiCl2·6H2O, 5~80gL-1 FeSO4·
7H2O, 5~70gL-1 H3BO3, 2~50gL-1 Na3PO4·12H2O utilizes 2~40Vol%H2SO4Adjust bath pH value
To 1~4.
4. preparing Ni-Fe-P-MnFeO according to a kind of electrochemistry described in claim 13The method of catalyst, it is characterised in that: will
10~100gL-1Granularity is the MnFeO of 5~500nm3It is added in electroplate liquid, 5~30min of ultrasonic disperse.
5. preparing Ni-Fe-P-MnFeO according to a kind of electrochemistry described in claim 13The method of catalyst, it is characterised in that: will
Pretreated iron plate or stainless steel or graphite are immersed in plating solution, and iron plate or stainless steel or graphite are as cathode, platinum plate electrode
As anode, at 0~20 DEG C, current density is 10~300mA/cm2Under the conditions of, 0.1~5h of electro-deposition.After the completion of electro-deposition,
Sample is subjected to ionized water cleaning, ultrasonic cleaning, drying process, Ni-Fe-P-MnFeO is made3Elctro-catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910679417.8A CN110373689B (en) | 2019-07-26 | 2019-07-26 | Preparation of Ni-Fe-P-MnFeO by electrochemical method3Method of electrocatalyst |
Applications Claiming Priority (1)
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| CN113249749A (en) * | 2021-05-10 | 2021-08-13 | 张家港智电芳华蓄电研究所有限公司 | Electrochemical hydrogen evolution electrode and preparation method thereof |
| CN114808007A (en) * | 2022-03-14 | 2022-07-29 | 青岛科技大学 | Method for preparing Ni-Fe-Cu-Co-W high-entropy alloy electrocatalyst by electrodeposition method |
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| CN113249749A (en) * | 2021-05-10 | 2021-08-13 | 张家港智电芳华蓄电研究所有限公司 | Electrochemical hydrogen evolution electrode and preparation method thereof |
| CN113249749B (en) * | 2021-05-10 | 2022-11-22 | 张家港智电芳华蓄电研究所有限公司 | Electrochemical hydrogen evolution electrode and preparation method thereof |
| CN114808007A (en) * | 2022-03-14 | 2022-07-29 | 青岛科技大学 | Method for preparing Ni-Fe-Cu-Co-W high-entropy alloy electrocatalyst by electrodeposition method |
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